Boot and shoe machinery.



N 843,839. PATENTED FEB. 12, 1907.

. .LNORTHERN.

- BOOT AND SHOE MACHINERY.

APPLICATION FILED 110V. 8. 1905.

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No. 843,839. PATENTED FEB. 12, 1907.

I I. NORTHERN. BOOT AND SHOE MACHINERY.

APPLICATION FILED NOV. 6, 1905.

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1M: NORRIS PETERS C0,, WASHINGTON, a. c

No. 843,839. PATENTED FEB. 12 1907.

V J. NORTHERN. BOOT AND SHOE MACHINERY.

APPLICATION FILED NOV. 6. 1905.

No. 843,839. PATENTED FEB. 12, 1907. J.NORTHB RN.

BOOT AND SHOE MACHINERY.

APPLICATION FILED NOV. 6, 1905 6 SHEETS-SHEET 4.

WZZfieSses,

I ETERs co.. WASHINGTON, n. c.

, No. 843,839. PATENTED FEB. 12, 1907.

J.NORTHBRN.

BOOT AND SHOE MACHINERY. APPLICATION FILED NOV. 6, 1905.

6 SHEETS-BEBE! 5.

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BOOT AND SHOE MACHINERY.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed November 6, 1905. Serial No. 286,011.

To all 1071 0112, it may concern.-

Be it known that l, JONATHAN NORTHERN, subject of Great Britain,residing at Rushden, in the county of Northampton, England, haveinvented new and useful Improvements in or Relating to Boot and ShoeMachinery, of wlnch the following is a specification.

This invention relates to machinery employed in the manufacture of bootsand shoes, and has particular reference to the type of nailing orslugging machine in which a short section is cut oil the end of acontinuous length of wire and driven into a boot sole or heel for thepurpose of studding, slugging, or riveting the said sole or heel.

The invention includes improved meansfor cutting off the slug andcarrying it into position to be driven, improved means for actuating thewire-feed wheel, improved means for carrying and operating the awl orpricker which perforates the work for each slug and subsequently feedsthe work, and, lastly, improved means for locking the horn orworksupport during the driving of the slug and, if necessary, during theperforating of the work.

The invention will be readily understood from the following description,wherein reference is made to the accompanying drawings.

Figure 1 is a front elevation, and Fig. a side elevation, of aslugging-machine constructed according to this invention. Fig. 3 is afront elevation of the head of the machine with the cover-plate removedto reveal the cutter-disks. Fig. 4 is a sectional detail view of thecutter-disks and adjacent parts.

Fig. 5 is a transverse section through the driving and cutter shafts onthe line 5 5, Fig. 2. Figs. 6 and 7 are a side and back view,respectively, of the feed-wheel gear. Fig. Sis a perspective view of thedriving-shaft per 86, showing the three cams thereon; and Fig. 9 is atransverse section on the line 9 9 of Fig. 2, showing the cam whichgoverns the stopping of the machine.

Figs. 1 and 2 are drawn to a smaller scale than the other figures; butin all of them identical parts are designated by the same referencecharacters.

Referring to the drawings Figs. 1 and 2, the frame 2, which may be ofany conventional type suitable for the purpose. carries at its upperpart a head 3, formed with bearings 4 for the driving-shaft 5, fromwhich all the various motions of the machine are derived viz., cuttingthe slugs and carrying them into position to be driven, feeding thewire, driving the slug, and operating the awl or pricker.

According to this invention the slug-cutting mechanism, Figs. 3 and 4,comprises an intermittently-rotating disk 6, on the end or face of whichare formed two diametrical grooves at right angles to each other,forming four equidistant passages 7 for receiving the wire 10. Thisrotating disk revolves within a stationary disk or cutter 8, having acorresponding number of passages 9 for the Wire. As the end of the wireis fed forward in the manner hereinafter to be described it passesthrough the adjacent passage 9 in the stationary disk or cutter 8 intothe corresponding passage 7 in the rotary disk cutter 6, and the latterin turning round in the direction of the arrow, Fig. 8, shears or cutsoff the end of the wire, constituting a slug and carries it intoposition under and in alinement with the vertically-reciprocating driver11 for being driven into thestock, which term is hereinafter used todesignate the sole or heel or other material into which the slug isdriven. The disk cutter 6 at each movement is rotated onequarter of arevolutioni. 6., through a distance of ninety degrees in the mannerhereinafter described, thereby bringing one passage 7 into alinementwith the wire 10, so that the end of the latter can be fed or projectedthereinto, and at the same time another passage in which the slug iscontained into alinem ent with the driver 11, so that the latter candrive it into the stock. The rotary disk cutter 6 is formed of hardenedsteel and is provided with a slotted stem 12, Fig. 4, arranged to socketinto and engage a transverse pin 13 in the hollow front end ofthemtermittently-rotating cutter-shaft 14. The said cutter-shaft 14,Figs. 2 and 5, derives its motion from the driving-shaft 5 above it bmeans of an eccentric 20 on the shaft 5, the

strap 21 of which eccentric is jointed to a lug 22 on an eccentricflange 17, formed integrally with a sleeve loosely mounted on thecuttershaft. The said flange carries a pawl 15, which is controlled byaspring and normally engages a ratchet or notched sleeve or pinion 16,keyed on the cutter-shaft 14 in close proximity to said loose sleeve.The number of teeth on the ratchet-pinion 16 correspond with the numberof wire-passages in the cutter-disks and in the example shown are four.A spring-controlled detent 18 engages the said ratchet-pinion 16 at theend of each movement of the cutter-shaft and prevents it moving beyondthe point where the passages 7 and 9 in the rotary disk cutter andstationary cutter are in alinement. The said flange 17 at each rotationof the eccentric 20 is actuated thereby to both operate the drivingpawl15 and simultaneously disengage the detent 18, for which latter purposethe said detent carries a roller 19, which runs on the cam edge of theflange and is raised and lowered thereby to throw the detent out of orinto action at the proper times.

The stationary cutter S is rendered immovable by being made of square orpolygonal shape and located in a recess 23, Fig. 4, of correspondingshape in the front of the head of the machine. A faceplate 24, bolted tothe front of the said head, prevents the stationary and rotary diskcutters from falling out of place.

The awl 25, Fig. 3, which perforates the stock and feeds the latteralong under the cutter-disks 6 and 8 the predetermined distance betweenthe slugs, is carried adj ustably by the lower end of a bell-crank lever26, hereinafter designated the awl-carrier. This awl-carrier 26 isfulcrumed at 28 on an auxiliary rocking lever 27, pivoted at 29 toabracket 30 on the side of the head of the machine. The awl 25 islowered to perforate the work by means of a strong spring 31, carried bya pin 32, projecting from said bracket, assisted by an auxiliary spring33 on the front of the machine.

A cam 36 on the driving-shaft 5, Fig. 3, acts on the auxiliary lever 27through the medium of a short arm 37 on the latter, caus ing it toactuate the awl-carrier and the awl, so that the latter feeds the stockalong. A second cam 34 on the driving-shaft next acts on the awl-carrierthrough the medium of a short arm 35 on its upper end, moving it on itsfulcrum 28, so that the awl is raised or withdrawn from the stock,whereupon the first cam 36 in passing out of action allows acompression-spring 38 to return the auxiliary lever and the awl-carrierback to their original positions. The awl is guided in its movements bya slotted plate 39, through which the driver passes. The said plate ismovable in a bracket 40, attached to the front of the machine, and isformed with a grooved lug 41, which is engaged by a pin 42 on the innerside of the lower end of a lever 43, Fig. 1, pivoted at 44 to thecover-plate 45. The

said lever is formed with a cam-slot 46, in

which a pin 47 on theface of the slotted bar 78, carrying the driver 1 1and hereinafter referred to, engages. The arrangement is such that asthe awl moves forward and backward the said pin 47, acting in thecam-slot 46, rocks the lever 43 on its pivot, thus causing its lower endto correspondingly move the said plate to allow for the motions of theawl. The extent of the inward or forward motion of the awl-carrier maybe altered to vary the 63, engaging a pin 64 on said disk 60.

pitch of the slugs by means of a screw-pin 48, carried by a lug 49 onthe bracket 30 and abutting against the lower arm of the auxiliary leveron the opposite side to that on turning this screw-pin the extent of thewhich the compression-spring 38 bears. By movement of the auxiliarylever, and hence of the forward or inward movement of the awl-carrier,each time said lever is operated by its cam may be determined so thatthe slugs may be inserted into the stock either nearer to or fartheraway from each other, as desired.

The feed-wheels, Figs. 3, 6, and 7 by which the wire is fed to thecutting-disks, comprise a small grooved roller 50 and anintermittently-rotated feed-wheel 51. The grooved roller is locatedbeneath the feedwheel and is mounted loosely on an arbor 52,

forming the pivotpin of a lever or arm 53. The said arbor is located ina'socket formed in a lug 54 on the head of the machine and is providedwith an eccentric-stud 55, carrying the roller, so that by turning thearbor round by means of the lever 53 the roller may be moved closer toor farther away from the feed-wheel. A tension-spring 56, attached atone end to the free end of the lever and at the other end to the head ofthe machine, is employed to hold the roller in its operative position.Then feeding is not required, the said spring may be unshipped from thelever, whereupon the roller is thrown out of action. Theintermittently-r0tatable feed-wheel 51 is mounted on a spindle 57,carried by the aforesaid lug 54, and is rotated by means of aratchet-wheel 58, keyed to said spindle 57, said ratchet-wheel beingitself driven by four pawls 59, arranged on a disk 60, mounted looselyon said spindle and operated at the required times to rotate theratchet-wheel to feed the wire by a third cam 61 on the driving-sihaft5, through the medium of a sliding bar or plate 62, formed with avertical slot The object of employing a plurality of pawls 59 is toinsure a uniform feed each time the cam pushes the plate 62 outward. Thesaid plate is controlled by a spring 65, which passes transverselythrough a hole 70, Figs. 1 and 7, in the support for the front bearing4. The plate 62 is also slotted horizontally at 66 to pass over a stud67, carried by a slotted bracket 68, secured by a nut and bolt 69 to themachine and adjustable thereon by means of a set-screw 69 bearingagainst the head of the machine, so that by loosening the nut 69 andturning said screw the bracket may be adjusted and the said platearranged nearer toor farther from its cam 61, whereby to vary its stroketo effect a corresponding difference in the movement of the feed-wheel,and hence in the length of wire fed into the lIO wire-passage in thedisk cutter, thereby making a longer or a shorter slug.

tion, may be locked in position to render it firm when required, asduring the driving of the slug, by means of a lock-rod (not shown) whichmay be moved up to and in contact with or so as to embrace the pillar ofthe horn by means of a cam acting upon an intermediate rod orconnection. The said lock-rod may be arrange l so as to press against orstraddle the said pillar with sutlicient pressure to enable it to resistthe downward pressure thereon, due to the impact of the driver insending the slug through the stock. In practice, however, the lockingarrangement shown in Fig. 2 is preferably employed and consists of adisk 72, rotatable on a spindle 73, located vertically beneath theupright pillar 74, carrying the horn at its upper end. The lower end ofsaid pillar carries a truck or roller 75, which engages a camslot 76,cut in said disk. The pillar 7 1 is arranged centrally above said diskin guides 77 and may be raised and lowered at the proper times duringthe running of the macln'ne, as hereinafter explained, by turning saiddisk, which, being always centrally beneath the pillar, forms a firm andsolid lock or stop therefor in a vertical direction.

The driver 11 is carried by the before-mentioned vertically-moving bar78, arranged between guides 79 on the head of the machine and havingtherein a slot 80, in which is located an eccentric-pin 81 on the frontcam 34, her-' inbe'lore referred to, said pin being provided with abearing-block 82, which is a sliding lit in the slot 80, Fig. 3.

The cams 34, 36, and 61 for operating the awl-carrier, auxiliary lever,and feed-wheel mechanism, respectively, are carried on the end of thedriving-shaft ee Fig. 8) which is supported in the head of the machineand makes the latter exceedingly compact and simple and easy ofadjustment and repair. The said driving-shaft is driven by means of apulley 83, mounted on a clutch 84 on the rear end of said shaft. Theclutch is pref rably operated by means of a yoke 85, having an inclinedor wedge face 86, which cooperates with a correspondingly-inclinedshoulder 87 on the nave or boss of the pulley, as shown in Fig. 2. Theyoke is depressed to throw the clutch into action by means of a pivotedfoot-lever 88 through the medium of a rod 89. The said rod is alsojointed to one end of a rocking bar 90, pivoted at 91 to a bracket 92 onthe machine, the other end of which bar is jointed to the "free end of abrakeband 93, surrounding the fixed part of the clutch. A spring 94normally keeps the brake in its operative position and the clutch in itsinoperative position. The horn 71 having been adjusted in the uppersocketed end of the pillar 74 relatively to the driver 11 and the stockplaced in position thereon, the

slugs.

machine is started by depressing the footlever 88, whereupon the clutchis thrown into. action and simultaneously the brake is taken off, asabove described. The clutch is maintained in action during the greaterpart of the revolution of the driving-shaft by means of a cam 95 on saidshaft engaging a roller- 96 on the yoke 85, as shown in Figs. 2 and 9.The said cam is timed and arranged to allow the clutch to be thrown outof action only at the end of the cycle of operations constituting as awhole the slugging operation. During one revolution of the driving-shaftthe third cam 61 thereon first operates the wired eed wheel 51 by meansof the bar or plate 62 and the pawl-and-ratchet gear 59 58. At or aboutthe same time as the wire is being fed into the wire-passage 7 of thecutter-disk the first cam 34 allows the awl-carrier 26 to be suddenlylowered by means of the springs 31 83 to cause the awl to perforate thestock, after which the second cam 36 next comes into action and by meansof the auxiliary lever 27 moves the awl-carrier inward or forward apredetermined distance corresponding to the desired pitch of the The awlis returned to its original position by the cam 34 and spring 38 as thedriving-shaft continues its revolution, by which time the cutter-shafthas completed its quarter-turn and the cutter-disk 6 has cut oil andbrought the slug into alinement with the driver 11, which is nowforcibly lowered by means of the eccentric-pin 81 to drive the slug intothe stock.

The disk 72, which looks the horn, is provided at the front with afoot-plate 97,whereby it may be turned by the foot when it is desired tolower the horn. The said disk is also provided with arearwardly-extending articulated arm 98, provided at its free end withtwo laterallydirected pins 99 100, one (99) of which bears on the topedge of the foot-lever 88, while the other pin, 100, is adapted to beengaged by the upper edge of a lever 101, pivoted at one end at 102 andjointed at an intermediate point in its length to a rod 103, connectedto the strap 104 of an eccentric on the driving-shaft. The arrangementis such that WlzGIl the foot-lever 88 is depressed, as aforesaid, tostart the machine it allows the spring 105 to turn the disk 72 to raisethe pillar 7 1, and hence the horn, into position beneath. the driver.Now in order that stock may be free to be moved the proper distance bythe awl between each cycle of operations and ready for the next it isnecessary to lower the horn slightly for this purpose, and this isefi'ected by the eccentric 104, which by means of the pivoted lever 101and pin 100 raises the arm 98 and turns the disk 72 through a smallangle in an opposite direction, thus lowering the horn at the propertime once in each revolution of the drivingshaft. A spring 106 isemployed to raise the foot-lever 88 when the latter is released from thefoot,

thus stopping the machine.

An adjustable guard is provided on the machine, up against which theoperator may hold the stock while in the machine, so that the slugs maybe inserted thereinto at a uniform distance from the edge of the stock.Said guard preferably comprises a plate 107, Fig. 2, carried on the endof a horizontal bar 108, arrranged adjustably in a slot or socket in thefront of the frame of the ma chine immediately beneath the head of thelatter. The said bar is locked in its adjusted position by means of ahand-lever 109, the pivoted end of which is formed with. a cam edge 110,between which and the overhanging framework the bar is gripped when thelever is turned on its pivot.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a machine of the kind herein described the combination with meansfor feeding the wire and means for driving the slugs formed therefrom,of a stationary cutter-disk formed with grooves or wire-passages, and aninner cutter-disk rotatable within said stationary disk and formed withpassages to correspond, a cutter-shaft carrying said inner disk, adriving-shaft, an eccentric thereon, a sleeve on said cuttershaft, aneccentric flange on said sleeve, a collar fixed on said cuttershaft inclose proximity to said flange and provided on its periphery with asmany notches or teeth as there are wire-passages in the cutterdisks, apawl on said flange engaging said collar so that as the driving-shaftrotates the eccentric thereon actuates the sleeve and flange, and hencethe pawl, to move the cutter-shaft through a predetermined angle, andmeans for preventing the cutter-shaft at each such movement being movedbeyond the point where the passages in the inner cutter-disk are inalinement with the passages in the stationary cutter-disk substantiallyas and for the purposes described.

2. In a machine of the kind herein described the combination with meansfor feeding the wire and with means for driving the slugs formedtherefrom, of a stationary cutterdisk formed wlth grooves orwire-passages,

and an inner cutter-disk rotatable within said stationary disk andformed with passages to correspond, a cutter-shaft carrying said innerdisk, a driving-shaft, an eccentric thereon, a loose sleeve on saidcutter-shaft, an eccentric flange on said sleeve, a collar fixed on saidcutter-shaft in close proximity to said flange and provided with anotched periphery, a pawl on said flange engaging said notched collar, aroller riding on said eccentric flange, a pivoted detent supported bysaid roller, so that toward the end of each movement of saidcutter-shaft the flange allows the detent to drop into engagement withthe notched collar and prevent the inner cutter-disk being moved beyondthe point where the passages therein are in alinement with the passagesin the stationary cutterdisk substantially as and for the purposesdescribed.

3. In a slugging-machine of the kind h erein described, means forfeeding and perforating the stock comprising an awl, a pivoted carriertherefor, a re cking lever carrying said carrier, means for moving saidcarrier on its pivot to lower and raise tlte awl toward and from thestock in perforating the latter, and mechanism for actuating saidrocking lever to move the awl and awl-oarrier bodily backward andforward in feeding the stock substantially as described.

4. In a slugging-machine of the kind herein described means for fee dingand perforating the stock comprising a pricker, a pivoted carriertherefor, a rocking lever carrying said carrier, a cam and springs formoving said carrier on its pivot to lower and raise the aWl toward andfrom the stock in perforating the latter, a cam and spring for actuatingsaid rocking lever to move the awl-carrier and awl bodily forward andbackward in feeding the stock and means for determining the extent ofsaid movement to regulate the pitch of the slugs substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JONATHAN NORTHERN.

Witnesses:

E. N. LEwIs, Trros. I WILsoN.

